A Study on Improving Fuel Consumption and Exhaust Emissions of Diesel Engine for Commercial Vehicle


Air management system for high boost and high exhaust gas recirculation (EGR) rate was assumed as a key technology for reduction of fuel consumption and exhaust emissions. The concept of air handling system has been proposed using relatively small turbocharger combined with late intake valve closing. Essence of the proposed concept is an improvement in the disadvantages of high boosting system. The basic ideas of the concept were constructed by simulation and improved fuel economy and emissions reduction were demonstrated using a multi cylinder diesel engine.小容量ターボチャージャを適用した高過給システムと吸気弁遅閉じミラーサイクルを組合わせることで,それぞれの短所を改善して相乗効果を見出すことを試みた.シミュレーションを用いた検討によりコンセプトを立案し,多気筒エンジンを用いて検証試験を実施した.


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  • Accession Number: 01679982
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jul 26 2018 3:02PM